I've seen it happen where a couple would be sitting down together working out some account fraud with one of the branch managers and some dubious charges would come up. In my four years working there, saw probably 3-4 couples storm out in anger related to something the other found on the account related to pornography
I get that this is, in fact, a real problem - but it's hardly one related to banking or finance. Sounds more like relationship trouble to me.
I'd be more concerned about the bitcoin conversion services showing up in some sort of record than porn since it's so easy to connect with far more questionable services. Yes, a lot of people want to be off the grid (especially financially), but the reality is that a lot of people buy into the "why do you need privacy if you have nothing to hide" mantra. Even spouses.
When I bought some bitcoins, I did it with cash. I took money to a bank teller, and wired it to an account; then the service sent me the bitcoin via email. I never showed ID, so there was no way to track it to me. I suppose if someone cared enough to track a cash withdrawal they could do that, but in no way was my bank account connected with a bitcoin transaction at any time.
I've seen it happen where a couple would be sitting down together working out some account fraud with one of the branch managers and some dubious charges would come up. In my four years working there, saw probably 3-4 couples storm out in anger related to something the other found on the account related to pornography